Do you really need to spend ~€400/mo? I don't mean to criticize offhandedly -- as someone who works in infotech I'm very familiar with the concerns sites like yours have -- but I bring it up because increasingly I feel this is a question that needs to be addressed (by the industry in general) for content creators/providers such as yourself: How to efficiently distribute information without having to succumb to advertising.
For example Google claims its mission is to "organize the information of the world". I think that's a very important and useful mission, BUT, in trying to achieve it they are also simultaneously polluting the information sphere with their advertising schemes. Even they can't figure out how to operate without advertising, and it's very sad because the promise of information organization (and access to it) is affected.
Increasingly I feel advertising has no place in a world where information is sought on demand and without corruption. People shouldn't have their senses and cogitation assaulted when they are trying to access and process data for whatever reason. It is a vestige of a past era when information was broadcast as a "push" (e.g. via television), rather than the world we live in today where information is increasingly "pulled" or requested on demand.
Ads in this age are just friction, nothing else.
EDIT:
Ahem, anyway, getting back on point -- have you looked at your initial assumptions? E.g. needing a "dedicated server"? Can you not get by with some VMs on AWS and scale horizontally as needed, etc.? I don't bring it up to "show off" my tech prowess or anything, but just to highlight that considerations around these very elements may be what needs to be addressed by the larger web community to ensure people can distribute information without relying on an advertising infrastructure.
Do I need to spend €400/month? No. Absolutely not.
I could cut back Cloudflare completely.
I could potentially cut back Google Cloud Storage completely.
But these are convenient and improve the overall user experience by having them both. What I didn't list in my OP are my writer payment costs. I spent quite a chunk of money paying my writers for content. These people also
need and deserve to be paid for their work. Unfortunately site ads completely cover that along with all hosting costs.
While I completely agree about ads in general, the alternative simply isn't viable. We cater to a young to middle aged audience. This audience aren't likely to subscribe via Patron on top of other subscriptions/bills they have. We tested a donation system for 3 months. I think we generated €30 but maybe we needed to push a donation pop-up in peoples faces? Do you see where I am coming from? It's oft a lose-lose situation.
Honestly? Haven't looked into Amazon AWS at all. It's something I can potentially look into come 2020. At the moment, I'm hosting with a Company of my origin. This currently provides me a lot of benefits (offsite backups, instant customer support, etc etc) and I've been reluctant to change that.
I've also been thinking of trying Digital Ocean!
Regardless though, despite the server infrastructure, I will still have to pay my writers what they deserve. It's such a hard dilemma and I honestly believe there isn't a current worldwide solution that works.